Service difficulty report · Seat Track · Boeing 7377H4

Difficulty date
June 23, 2024
Submitted
August 7, 2024
Operation
Air carrier
Aircraft
N478WN
Make and model
Boeing 7377H4
Aircraft serial
33989
Aircraft time
66,062 hours, 39,438 cycles
Part
Seat Track
Condition
Corroded
Location
Zone 200
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CORROSION; CABIN SEAT TRACK; LBL 25; WL 208; BS 360 + 8 TO BS 380; IN THE WELL. DAMAGE IS AT LBL 45 NOT LBL 25<[01] UPDATED STEPS 7.8.;[02] REMOVED CORROSION FROM SEAT RRACK AT 360+8 LBL 45 DAMAGE DIMENSIONS ARE L '2' X W .8 D .045; DAMAGE FOUND TO BE OUT OF LIMITS PER SRM 53-0052-1A-1 STEP 4; A FIG 103 DAMAGE 1 DETAIL A-A. REMOVED SEAT TRACK AT BS 360+10 TO BS 480 PER SRM 51-40-02-0G-0 AND INSTALLED NEW SEAT TRACK AT BS 360+10 TO 480 IAW SRM 51-40-02-OG-0 AND DWG 143A5300 REV : -;[03] VERIFIED.

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